one peice body

[LT ED]

Hi there. just joined the forum. Ive recently bought a gibson les paul limited edition which is wonderful and sounds and plays great. My question is why is the body made up of two peices of wood and I dont mean the front but the back? It doesnt realy matter but for the money it cost it is a little disapointing. Most les pauls ive looked at are made with one peice. One more thing, were could I get hold of a truss rod cover that just says les paul some of the limited editions seem to have them and some dont guess which I got. Ive tried gibson but they said that its not a stock item. Im in the uk can anybody help thanks.